android官方网站怎么登,Android,android官网

蒋斯伯
2023-12-01

importjava.util.List;importandroid.app.Activity;importandroid.content.Intent;importandroid.content.pm.ResolveInfo;importandroid.os.Bundle;importandroid.view.View;importandroid.view.ViewGroup;importandroid.widget.BaseAdapter;importandroid.widget.GridView;importandroid.widget.ImageView;public class MyHome extendsActivity

{

GridView mGrid;

@Overridepublic voidonCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);

loadApps();

setContentView(R.layout.main);

mGrid=(GridView) findViewById(R.id.apps_list);

mGrid.setAdapter(newAppsAdapter());

}private ListmApps;private voidloadApps() {

Intent mainIntent= new Intent(Intent.ACTION_MAIN, null);

mainIntent.addCategory(Intent.CATEGORY_LAUNCHER);

mApps= getPackageManager().queryIntentActivities(mainIntent, 0);

}public class AppsAdapter extendsBaseAdapter

{publicAppsAdapter() { }public View getView(intposition, View convertView, ViewGroup parent) {

ImageView i;if (convertView == null) {

i= new ImageView(MyHome.this);

i.setScaleType(ImageView.ScaleType.FIT_CENTER);

i.setLayoutParams(new GridView.LayoutParams(50, 50));

}else{

i=(ImageView) convertView;

}

ResolveInfo info=mApps.get(position);

i.setImageDrawable(info.activityInfo.loadIcon(getPackageManager()));returni;

}public final intgetCount() {returnmApps.size();

}public final Object getItem(intposition) {returnmApps.get(position);

}public final long getItemId(intposition) {returnposition;

}

}

}

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